CN220102033U

CN220102033U - Pressure vessel structure

Info

Publication number: CN220102033U
Application number: CN202321593564.1U
Authority: CN
Inventors: 陈小功; 范雷; 瞿亚明
Original assignee: Canature Health Technology Group Co ltd
Current assignee: Canature Health Technology Group Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-11-28
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a pressure vessel structure, comprising: an inner container formed in a tub shape; a neck portion formed at the bung hole, the top portion of which is formed with a burring portion; a flange insert formed in a split structure capable of being fixedly connected; the heating pipe component is covered and fixed on the flanging part; and the winding layer is coated on the outer wall of the inner container and at least part of the flange insert. Compared with the prior art, the utility model has fewer parts, is more convenient to assemble, can reduce the production cost, improve the production efficiency, reduce the leakage risk and improve the sanitation and safety.

Description

Pressure vessel structure

Technical Field

The utility model relates to the field of water treatment, in particular to a composite material pressure vessel structure with a plastic lining for drinking water equipment.

Background

Along with the improvement of the living standard of people, wading products are more and more widely used by families, especially water heater products, and become a necessary choice at home. The water storage unit of the water heater is generally formed by welding metal sheet metal materials, and scale is prevented in the water storage unit in an enamel mode. However, in the continuous use process, the phenomena of welding seam leakage, corrosion, rust and scaling still exist, and solid particles generated by the problems can be gradually increased and accumulated, so that the defects of reduced heat efficiency, yellow water quality, reduced water yield and the like of the water heater are caused, and finally, the water heater is scrapped, so that the use of customers is influenced. Especially, the problem of reduced thermal efficiency will produce more energy consumption, and increasing the energy consumption a little at such a wide product popularity rate means that the exponential energy consumption is wasted, which is not negligible.

Referring to fig. 1, a conventional metal liner structure for a drinking device is provided, in which a heating assembly 2, a sealing plate 3 and an adapter 4 are fixedly connected by a bolt 1, a sealing ring 5 is disposed between the adapter 4 and a liner 6, a thread insert 7 is disposed in the liner 5 and is fixedly connected with the adapter 4 by threads, and a winding layer 8 is formed outside the liner 6. The metal liner has the defects of easy leakage of welding lines, easy corrosion and scaling in application, high energy consumption and high pollution in the forming process.

Therefore, the inner container made of the metal material has a plurality of defects in the use process, and the problem of excessive energy consumption in the production process (the enamel technology is formed at ultra-high temperature) is contrary to the national goal of carbon-to-peak carbon neutralization, so the trend of adopting novel alternative materials is imperative.

Chinese patent CN202120373785.2 discloses a structure based on PB (polybutene) material and threaded insert of bung hole, and forms a composite material pressure vessel bung body, which can well replace metal liner to be applied in water heater. However, this structure cannot be directly connected to the heating element, and it is also necessary to connect and use both via an adapter. Because the wading part is used at high temperature, the material and strength of the part are required to be high, and the cost is high. In other words, the utility model has the advantages of complex structure and high cost, and limits the application and popularization of the utility model.

Disclosure of Invention

In the summary section, a series of simplified form concepts are introduced that are all prior art simplifications in the section, which are described in further detail in the detailed description section. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The utility model aims to solve the technical problem of providing a pressure container structure which can ensure the sealing performance and the integral strength and has simple structure and low production cost and a manufacturing method thereof.

In order to solve the above technical problems, the present utility model provides a pressure vessel structure, including:

an inner container formed in a tub shape;

a neck portion formed at the bung hole, the top portion of which is formed with a burring portion;

a flange insert formed in a split structure capable of being fixedly connected; for example, the flange insert can be selectively formed into a two-petal structure, a three-petal structure, a four-petal structure, a five-petal structure and a six-petal structure, and the petals are fixedly connected through bolts to form a flange insert;

the heating pipe component is covered and fixed on the flanging part;

and the winding layer is coated on the outer wall of the inner container and at least part of the flange insert, and any material used for the winding layer in the prior art can be selected for the winding layer.

Further, the turnover part is formed as an edge extending from the bung hole horizontally to the outside, and an overlapping part exists between the turnover part and the liner body in the vertical direction; the inner diameter is the same throughout the neck, including but not limited to the neck inner diameter being equal to the bung inner diameter.

Optionally, the pressure vessel structure is further improved, the flange insert is nested outside the neck of the bung hole, the upper end face of the flange insert is attached to the lower end face of the flanging part, and a supporting effect is formed on the flanging part and the neck.

Optionally, the pressure vessel structure is further improved, and further includes:

a seal formed between the heating tube assembly and the cuff portion.

Optionally, the pressure vessel structure is further improved, and the sealing member is a sealing sheet with the same shape and size as the flanging part.

Optionally, the pressure vessel structure is further improved,

the upper end face of the upper end part of the flange insert is formed into a flange structure, and the upper end face is attached to the flanging part of the liner and is provided with uniformly distributed first connecting holes;

the flanging part is provided with a second connecting hole corresponding to the first connecting hole;

the connecting piece passes through the first connecting hole and the second connecting hole to be fixedly connected with the heating pipe component;

the middle part of the flange insert can be at least partially covered by the winding layer, or the middle part of the flange insert is not covered by the winding layer; the middle part is used for transmitting the stress of the flange surface to the winding layer, so that the inner container is prevented from being stressed.

An extension part is formed at the lower end part of the flange insert, the extension part is matched with the shape of the outer wall of the liner, and the extension part is covered by the winding layer.

The purpose of the design neck of the liner is that: the main body of the stress is a liner and a heating pipe component, and how to combine the liner and the heating pipe component needs to be considered, so that the sealing and the bearing strength are realized. The liner requires a flanged flange feature to connect to the heating tube assembly. However, the flange portion is not covered with a winding layer, and the winding layer can only cover the middle part of the flange insert at most. That is, if there is no support for the flange insert, pressure cannot be applied by means of the blow-molded burring alone. The utility model provides a neck part for the opening part of the inner container, and the flange insert can be buckled at the neck part. And then through the combination of flange mold insert and winding layer, realize the transmission of atress.

The strength of the flange insert itself and the bonding strength of the flange insert and the winding layer can be obtained through the analysis, and the two aspects are very important, so that the winding layer needs to cover the flange insert as much as possible during manufacturing so as to obtain better strength.

Alternatively, the pressure vessel structure may be further modified such that the flange insert halves are pre-locked by a pre-tightening structure.

Optionally, the pressure vessel structure is further improved, and the pre-tightening structure is a screw, a pin or a glue connection part.

Optionally, the pressure vessel structure is further improved, and the flange insert is made of metal, engineering plastic or glass fiber reinforced plastic.

The utility model can at least realize the following technical effects;

1. compared with the prior art, the utility model has fewer parts, is more convenient to assemble, can reduce the production cost and improve the production efficiency.

2. Compared with the prior art, the utility model has fewer parts and only one sealing part, can reduce the risk of leakage, and has better sealing effect.

3. Fewer parts are involved than in the prior art (the prior art thread insert and the adapter are both wading parts), while the flange insert of the present utility model does not wade. The present utility model greatly increases the sanitary safety of the system by reducing wading components. As in the prior art, both the threaded insert and the adapter are made of brass material which must contain some amount of lead which is released into the water during prolonged contact with the water.

Drawings

The accompanying drawings are intended to illustrate the general features of methods, structures and/or materials used in accordance with certain exemplary embodiments of the utility model, and supplement the description in this specification. The drawings of the present utility model, however, are schematic illustrations that are not to scale and, thus, may not be able to accurately reflect the precise structural or performance characteristics of any given embodiment, the present utility model should not be construed as limiting or restricting the scope of the numerical values or attributes encompassed by the exemplary embodiments according to the present utility model. The utility model is described in further detail below with reference to the attached drawings and detailed description:

fig. 1 is a schematic diagram of a prior art structure.

Fig. 2 is a schematic structural view of the present utility model.

FIG. 3 is a schematic view of one possible embodiment of a flange insert.

Fig. 4 is a schematic top view of fig. 3.

Description of the reference numerals

Bolt 1

Heating assembly 2

Sealing sheet 3

Adapter 4

Sealing ring 5

Inner container 6

Screw insert 7

Winding layer 8

Flange insert 9

Upper end 9.1 of the flange insert

Connecting hole 9.2

Middle part 9.3 of the flange insert

Lower end 9.4 of the flange insert

Epitaxial portion 9.5

Pretension connection hole 9.6

Neck 10

Flanging portion 11

And a second connection hole 11.1.

Detailed Description

Other advantages and technical effects of the present utility model will become more fully apparent to those skilled in the art from the following disclosure, which is a detailed description of the present utility model given by way of specific examples. The utility model may be practiced or carried out in different embodiments, and details in this description may be applied from different points of view, without departing from the general inventive concept. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. The following exemplary embodiments of the present utility model may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solution of these exemplary embodiments to those skilled in the art. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. Like reference numerals refer to like elements throughout the several views.

A first embodiment;

referring to fig. 2, the present utility model provides a pressure vessel structure comprising:

an inner container 6 formed in a tub shape;

a neck portion 10 formed at a bunghole, a burring portion 11 being formed at a top thereof;

a flange insert 9 formed in a split structure capable of being fixedly connected; for example, the flange insert can be selectively formed into a two-petal structure, a three-petal structure, a four-petal structure, a five-petal structure and a six-petal structure, and the petals are fixedly connected through bolts to form a flange insert;

the heating pipe component 2 is fixed on the flanging part 11 in a covering manner, and the heating pipe component is fixed through the bolt 1 in the embodiment;

a wrapping layer 8 that wraps around the outer wall of the liner 6 and at least a portion of the flange insert 9.

In an optional further improvement, in the first embodiment, the flange insert fills a space between the flange portion and the liner bung hole, and supports the flange portion.

A second embodiment;

with continued reference to FIG. 2, the present utility model provides a pressure vessel structure comprising:

an inner container 6 formed in a tub shape;

a seal formed between the heating tube assembly 2 and the burring part 11, the seal being a sealing sheet 3 having the same shape and size as the burring part 11;

In an optional further improvement, in the second embodiment, the flange insert is nested outside the neck of the bung, and an upper end face of the flange insert is attached to a lower end face of the flanging part to support the flanging part and the neck.

A third embodiment;

the present utility model provides a pressure vessel structure, which is a further improvement based on the second embodiment, and the same parts will not be described in detail;

referring to fig. 3 and 4, the present utility model provides a possible embodiment of a flange insert, taking two-lobe as an example, the flange insert cross-section is shaped like an "i";

the upper end face of the upper end part 9.1 of the flange insert is formed into a flange structure, the upper end face is attached to the inner container flanging part 11 and is provided with uniformly distributed first connecting holes 9.2, and the first connecting holes 9.2 are used for being connected with a heating pipe component;

the flanging part is provided with a second connecting hole 11.1 corresponding to the position of the first connecting hole 9.2;

the connecting piece (such as a bolt) passes through the first connecting hole 9.2 and the second connecting hole 11.1 and the connecting hole of the heating pipe component to form a fixation;

the middle part 9.3 of the flange insert can be at least partially covered by a winding layer; correspondingly, the optional winding layer can only cover the extension part;

the lower end 9.4 of the flange insert is formed with an extension 9.5, the extension 9.5 being adapted to the shape of the outer wall of the inner container 6 and being covered by a winding layer 8.

Alternatively, the extension 9.5 may be formed in a ring shape or may be formed in an epitaxial stripe shape at intervals.

Alternatively, the third embodiment described above can be further modified in that the flange insert halves can be pre-locked by a pre-tightening structure, which is a screw, pin or glue connection.

Alternatively, the third embodiment is further improved, wherein the flange insert is made of metal, engineering plastic or glass fiber reinforced plastic.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The present utility model has been described in detail by way of specific embodiments and examples, but these should not be construed as limiting the utility model. Many variations and modifications may be made by one skilled in the art without departing from the principles of the utility model, which is also considered to be within the scope of the utility model.

Claims

1. A pressure vessel structure, comprising:

an inner container formed in a tub shape;

a flange insert formed in a split structure capable of being fixedly connected;

the heating pipe component is covered and fixed on the flanging part;

and the winding layer is coated on the outer wall of the inner container and at least part of the flange insert.

2. The pressure vessel structure as defined in claim 1, wherein: the flange insert is nested outside the neck of the bung hole, the upper end face of the flange insert is attached to the lower end face of the flanging part, and the flanging part and the neck are supported.

3. The pressure vessel structure as defined in claim 1, further comprising:

a seal formed between the heating tube assembly and the cuff portion.

4. The pressure vessel structure as defined in claim 1, wherein:

the middle part of the flange insert can be at least partially covered by the winding layer, or the middle part of the flange insert is not covered by the winding layer;

5. The pressure vessel structure as defined in claim 1, wherein: the flange insert halves can be pre-locked by a pre-tightening structure.

6. The pressure vessel structure as defined in claim 5, wherein: the pre-tightening structure is a screw, pin or glue connection part.

7. The pressure vessel structure as defined in claim 1, wherein: the flange insert is made of metal, engineering plastic or glass fiber reinforced plastic.